PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

104123Disk and Seat,valve

Hydro-Aire Aerospace Corp · NSN 4820-00-486-5487 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-486-5487 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-486-5487. Primary manufacturer part number: 104123.
Features
  • Disk and Seat,valve — FSC 4820
  • General Characteristics Item Description: STEEL MIL&S&7097,0.746 IN. DIA,1.50 IN. LG. OF SEAT,1.46 IN. LGOF THE POPPET,APPL TO 48205404106 IN
  • 1 verified cross-reference
  • Primary manufacturer: Hydro-Aire Aerospace Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Disk and Seat,valve, cataloged under National Stock Number 4820-00-486-5487, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-486-5487
Primary Part Number104123
Item NameDisk and Seat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHydro-Aire Aerospace Corp
StatusACTIVE
General Characteristics Item DescriptionSTEEL MIL&S&7097,0.746 IN. DIA,1.50 IN. LG. OF SEAT,1.46 IN. LGOF THE POPPET,APPL TO 48205404106 IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2520-00-081-563410-4-123 INTERCHANGEABLE
Yoke,universal Joint,vehicular
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
5962-00-890-0950 INTERCHANGEABLE
Microcircuit,digital
5940-01-236-656510-412-3 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
5995-01-279-3012104123 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Aimtron Systems, Llc
5305-01-288-5174104123 INTERCHANGEABLE
Thumbscrew
Marine Electric Systems Inc
Cross-Reference Index
Part NumberManufacturer
104123 PRIMARY Hydro-Aire Aerospace Corp (USA)
Related Parts
2520-00-081-5634INTERCHANGEABLE
YOKE,UNIVERSAL JOINT,VEHICULAR
10-4-123
5962-00-890-0950INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5940-01-236-6565INTERCHANGEABLE
TERMINAL,STUD
10-412-3
5995-01-279-3012INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
104123
5305-01-288-5174INTERCHANGEABLE
THUMBSCREW
104123

Frequently Asked Questions

What is NSN 4820-00-486-5487?

NSN 4820-00-486-5487 is a Disk and Seat,valve, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-486-5487?

NSN 4820-00-486-5487 has 1 cross-referenced part number: 104123 (Hydro-Aire Aerospace Corp).

What NSN replaces 4820-00-486-5487?

There are 5 known substitutes for 4820-00-486-5487: 2520-00-081-5634, 5962-00-890-0950, 5940-01-236-6565 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 104123?

Key specifications for 104123: General Characteristics Item Description: STEEL MIL&S&7097,0.746 IN. DIA,1.50 IN. LG. OF SEAT,1.46 IN. LGOF THE POPPET,APPL TO 48205404106 IN. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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